60 FPS

[JudgeHolden]

How do you convert progressive footage to 60 FPS without field blending?

Edit: I should say that what I want to do in the end is slow down my footage in my editor and still have it look smooth.

[Pwolf]

not very easily. You'd have to interpolate which is basically letting the computer try to "guess" what's between the frames. assuming a perfect 23.976 video source, that's letting the computer "guess" on 36.024 frames in a second. While other editors have done it (see nostromo's videos and even the 60fps Skittles), the animation looks "jello-y" and in no way natural. This can be done using commercial products such as Twixtor or using Avisynth.

In some interlaced source cases, you can separate the fields as separate frames. This gives you double the frame count but you get half the frame height so you have to resize it and stretch it back. This works better with live action sources but not so well with animation as you see the defects a lot more. This can be done in avisynth.

[Pwolf]

Here's a quick example of doing it in avisynth:

http://www.pwolfamv.com/other/Avisynth% ... lation.mp4

The results look worse the faster the movement across the frame. Twixtor does it a little bit better IMO but creates a more fluid type movement which will create the more jello like look. Both look terrible though. I looked into doing this for a video I had in mind and not being able to get the smooth slow motion I wanted ended up killing the project for me.

[mirkosp]

And then there's the hard working man way: REDRAWAN!

If you really really need to slow down that bad and twixtor and mvtools just don't do it right, redrawing is about the only thing you can do.

[Pwolf]

And then there's the hard working man way: REDRAWAN!

If you really really need to slow down that bad and twixtor and mvtools just don't do it right, redrawing is about the only thing you can do.

You might be able to get away with using interpolation and then just redrawing the bad frames via masking and such in AE. A lot of work but if you absolutely need the slow motion effect, then it would be worth it i think.

[mirkosp]

Another thing you can try is using mvtools or twixtor to interpolate the framerate like up to 9001fps, then blending and motion-blurring the frames together. That might hide the bad interpolation and perhaps give a more natural feel too, somehow.

[Phantasmagoriat]

http://www.animemusicvideos.org/forum/v ... 3&t=102247

Yeah, animation is a pain to frame-interpolate. Particularly with complex motion like what pwolf posted, although you can see it worked alright for some of the subtle movement.
I should probably add that FI usually works best when using even multiples of the original framerate (in this case 47.952fps), then use assumefps() to slow things down again.

Live footage is much easier though. Actually, sometimes I'll Frame-interpolate on-the-fly with MPC+Avisynth so I can use my computer monitor in place of one of those fancy 60Hz TV's

Another thing you can try is using mvtools or twixtor to interpolate the framerate like up to 9001fps, then blending and motion-blurring the frames together. That might hide the bad interpolation and perhaps give a more natural feel too, somehow.

Another option that usually gets overlooked is to simply use duplicate frames. I know that sounds contrary to what we are trying to achieve here, but since animation is already made up of many duplicates, sometimes you can get away with it. Even if it doesn't look as fluid, as least you don't get ugly warped frames. Most of nostromo's work is a combination of interpolated frames (whenever it's possible) and duplicates (when it's not possible). Plus it's waaay easier to scrap scenes that don't interpolate properly, instead of fighting with the animation to make it work.

[Mister Hatt]

I've done this with mocha, perl, imagemagick, and ffmpeg >_>

Wouldn't recommend it though.

[Mister Hatt]

TL Note: Someone join these two posts, orz.

You can actually achieve this, although it won't be smooth, with a soft telecine. It can also be done with mvtools in avisynth by building a motion mask, and then interpolating the frames in between. Hopefully you can do this better than whatever idiot attempted a blend-conversion on the Angel Beats PV. That thing was awful and I had to freezeframe 2 out of every 3 frames. Just saying, it almost always looks bad to do what you're asking.